The answer is likely that no one has stepped up to be a maintainer. Packages in Debian have to have a maintainer that's responsible for keeping the .deb up-to-date. If no one volunteers to maintain a package, it simply will not be available, at least in the official repos. As long as your system meets the package dependencies, there's nothing stopping you from downloading the Ubuntu package and installing it with sudo dpkg -i filename.deb.

the yum equivalent on OEL was utter shite imho, you end up filling your disk with snapshots which you have to be really careful with removing otherwise you end up with snapshots you cannot delete due to them being out of order.